Soak -away trench excavation at extension area found without any  protection. Contractor must ensure that excavation has been adequately protected with solid continuous (interconnected   barriers, no gap is accepted) barriers, hazard signs and blinking lits etc.   (Ref. to: QCS: 1.10.5.5 + 11.1.5.4 + 11.2.2 +11.2.3).
Hazard category: Unsafe excavations